General dust collection from main to machine, probably not more than ten feet at a time. I am asking because I don’t see be any info regarding the difference when you are on anyone’s web site! I assume that maybe one is tougher than the other? or more flexible?

Have you ever looked at McMaster Carr# ? We have a molding plant and get all of our flexible hose from them. They have many different kinds and sizes and they give good technical descriptions of their products and will even help you over the phone. The other good thing is that they have thousands of other things that are useful for things in the shop. If you can get one of their catalogs you will have a valuable resource that has about 4 or 5 thousand pages and they will ship small quantities. We order from them nearly every week.

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

That is the ticket McMaster Carr. I don’t think for your use it would make much of a difference. The Urethane is more resistant to chemicals and has a bit more dent/scuffing resistance and therefore more money.